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Why my optiplex 740 only recognises one of two memory cards

Hello,
Bought a matched pair of crucial 1gb chips and the computer only recognizes one of them. I have them in the 1 and two spots out of four available. Any suggestions. Had just a 512 when I bought it, I know its aqmd chip do not know which mobo.
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  1. Best answer
    Welcome, Newcomer. Have you tried moving the sticks around? If not, try this:

    CPU: | _ | _
    or
    CPU: _ | _ |

    "|" indicates a populated DIMM slot, whereas "_" indicates an unpopluated DIMM.
  2. T_T said:
    Welcome, Newcomer. Have you tried moving the sticks around? If not, try this:

    CPU: | _ | _
    or
    CPU: _ | _ |

    "|" indicates a populated DIMM slot, whereas "_" indicates an unpopluated DIMM.


    thanks for your response, I checked out the Dell website and they indicated that for the dual processor to work the memory had to be in the 12 slot so I pulled them out and put them it about four times and they worked. Must not of make good contact the first time. A fried of mine this morning says that he cleans the contacts with an eraser before he put them in to get rid of any film that may be on them.
  3. Best answer selected by wewally.
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